| 摘要 |
PROBLEM TO BE SOLVED: To provide a drainable tennis court drainable in a short time even if there is rainfall, allowing a play, and easily performing construction and remodeling work in a short time. SOLUTION: This tennis court has a roadbed layer, a water permeable pavement layer and a surface layer, and is formed into a structure of laying a plurality of closed conduits at predetermined intervals on the roadbed layer, and has a gradient of about 0.2 to 0.5%. Its closed conduit has a structure of embedding a perforated pipe in a layer composed of single grain size crushed stones. A desirable mode is constituted so that the closed conduit covered with a water permeable fabric web is arranged in substantially parallel to a drain side groove formed on the tennis court downstream side. COPYRIGHT: (C)2006,JPO&NCIPI
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